Peculiarities of SHS and Solid State Synthesis of ReBa₂Cu₃O_7-x Materials

Abstract

The peculiarities of using Self-propagating High-temperature Synthesis (SHS) and solid-stave chase synthesis for production of high temperature superconductor materials were discussed. Oxide superconductors with general formula of $ReBa_2Cu_3O_{7-x}$ (Re=Y, Sm) haute been made by using barium oxide initial powder instead of traditional barium carbonate. Phenomena observed during the grinding of the reactants mixture are presented. Mechano-chemical activation - as a pre-treatment of the reactants mixture - strongly influences the kinetic parameters, the reaction mechanism, and the composition and structure of the final product.

Keywords

• Self-propagating High-temperature Synthesis (SHS);
• $ReBa_2Cu_3O_{7-x_{11}}$;
• Oxide superconductors;
• SHS propagation;
• Combustion velocity

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References

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